以ZSM-5分子筛催化剂催化C4=/C5=裂解选择性制C3=反应过程为研究对象，根据正碳离子的形成与β裂解机理和Arrhenius方程基本原理，阐明并实验验证强化C4=/C5=催化裂解选择性制C3=反应的反应路径及其调控原理；在常规催化裂解硅烷技术（CCS）基础上，提出选择性化学吸附的新思路，建立精细调控分子筛酸性质的方法和技术（SCA-CCS）：选择性化学吸附-催化裂解硅烷，揭示该技术的化学原理，形成分子筛酸性质调控的操控模型，实现分子筛酸量和酸强度分布的可控精细调节；研发适应强化C4=/C5=催化裂解选择性制C3=反应路径要求的合适酸性质的ZSM-5分子筛催化材料，结合工艺过程研究，形成以最大程度提高丙烯选择性和产率为目标、与不同C4=、C5=组成的原料相适应的反应过程基本方案。预期形成的科学认识和技术方法将为进一步研发强化OCP过程选择性生成丙烯工业技术提供有力支撑。

To further challenge intensification of the selective formation C3= of light olefins (propylene and ethylene) in the olefins catalytic cracking to propene (OCP), catalytic cracking of C4=/C5= olefins to selective formation of propene using ZSM-5 as catalyst was studied. On the basis of the formation and β cracking of carbenium and Arrhenius, the research was devoted to revealing and demonstrating the reaction pathways and control principle for the catalytic cracking of C4=/C5= to C3=. Besides, the research proposed a new idea of selective chemical adsorption (SCA) and established the method and technique of fine control of the acidity based on the conventional catalytic cracking of silanes (CCS), selective chemical adsorption and catalytic cracking of silanes (SCA-CCS). The study focused on the action mechanism of SCA-CCS to fine control of the acid content and acid strength of zeolite. Developing the zeolite of ZSM-5 which has the appropriate acid property to adapt the selective formation of C3= in the catalytic cracking of C4=/C5= and combining with craft process to adapt different C4= and C5= to promote the selectivity and yield of propene extremely are the final goal. The research is expected to provide strong technical support to further promote the selective formation of propene in industrialization by combining the scientific understanding and technical method of OCP.